@techreport{core_bargset_kernel-techrep,
  title = "On the Complexity of Core, Kernel, and Bargaining Set",
  author = "Gianluigi Greco and Enrico Malizia and Luigi Palopoli and Francesco Scarcello",
  year = "2010",
  institution = "Computing Research Repository (CoRR)",
  month = "September",
  number = "arXiv:0810.3136",
  url = "http://arxiv.org/abs/0810.3136",
}